Exhaust-operated alarm for automobiles



Mar. 27 1923- v 1,450,138

S. CROCE EXHAUST OPERATED ALARM FOR AUTOMOBILES Filed.May 51, 1922 2 sheets-sheet l Fql.

I 34 g, 33 511171 me sR AT I'ORNEY WITNESS:

Mar. 27, 1923- 1,450,138

s. CROCE EXHAUST OPERATED ALARM FOR AUTOMOBILES Filed May 51, 1922 2 sheets-sheet 2 L P 32 W L A v /36 5am Croce Q I 8Y0 j INVENTOR WITNESS: ATTORNEY l mented Mar. 27, 1923.

SAM CROCE, OF ST. JOSEPH, MISSOURI, ASIGNOR OF ONE-HALF TO WILLIAM PAPPAS, OF ST. JUSEEI-I, MISSOURI.

EXHAUST-OPERATED ALARM FOR AUTOMOBILES.

Application filed To all whom it may concern Be it known that I, SAM Cnoon, a citizen of Italy, residing at St. Joseph, in the county of Buchanan and State of Missouri, have invented new and useful Improvements in Exhaust-Operated Alarms for Automobiles, of which the following is a specification.

The object of this invention is to provide a device to be operated by the exhaust gases from an internal combustion engine, the device to be set by an authorized person so that it will sound an alarm it the engine is started.

A further object is to providea key-controlled device, which shall include a whistle.

A still further object is to provide a device of this type including a rotatable element which will afford a passage for the exhaust gases and permit them to pass through the whistle when it is desired to have the alarm ready for operation.

\Vith the foregoing and other objects in view, the invention consists in the novel construction and arrangement of elements disclosed, it being understood, that modifications may be made within the scope of the claims, without departing from the spirit of the invention.

In the drawings, Figure 1 shows the device in vertical section; Figure 2 is a horizontal section through the upper portion of the valve body and the structure associated therewith; Figure 3 is aview partly in vertical section from another angle; Fig ure lshows a key controlled gear wheel; Figures 5 and 6 are perspective views of the rack bars of Figure 2.

In carrying out the invention, I provide a body portion 10 having a transverse bore 11 therein, and a vertical bore 12, the bore 11 being threaded for connection with the exhaust pipe 13. The exhaust gases normally pass directly through the transverse bore without operating the signal, but when the latter is set by an authorized individual, the gases, or a portion thereof, take the path indicated below.

The upper part of the body portion 10 is provided with a recess 14: receiving an annular element 15 provided with an annular channel 16. A bell-shaped housing 18 is provided with handles 18 and with oblique slots 19 permitting of the escape of the gases when deflected through the signal apparatus.

May 31, 1922.

A central stem 20 constitutes a tubular valve member, or valve plug, and is provided with bore 22 through which the gases pass under normal conditions. The valve member carries a whistle 23 in comniunieation with bore 2 in the valve, the bore having an entrance portion 25 positioned to permit of registration with the transverse bore of the body portion when the bore 22 is out of registration, or partly cut oil.

The element 23 carries lugs 26 engaging grooves 27 in element 18, so that elements 18 and 23 rotate together.

Annular element 15 constituting a base is held against rotation by devices 28, but the valve, whistle and housing 18 may be rotated provided the gear wheel 30 is permitted to rotate. This wheel is engaged by locking bars, or rack bars, 31, 32, the latter being controlled by segmental gear 36, which is in turn controlled by key 33 of the operator, placed in slot- 34. The device may thus be placed in operative or inoperative position, at will. Bar 32 is provided with two series of teeth, 37, 38, one series being engaged by gear wheel 86. The looking bars engage at points 81', 82.

What I claim is 1. In a device of the class described, a body portion having a bore therein, and a second bore at an angle with the bore first named, a valve mounted in the second named bore, and having a. port for the normal exhaust of gases and a port for defleeting exhaust gases, and an alarm operable when the valve is rotated to deflect gases from the bore first named.

2. In a device of the class described, a body portion having bores therein, a tubular valve mounted in one of the bores and having a port independent of the tubular portion, permitting normal engine exhaust, an alarm operable upon the escape of exhaust gases through the tubular portion of the valve when the latter is rotated, said alarm including a whistle mounted on the valve and having communication with the tubular bore thereof.

3. A device of the class described, comprising a body portion having bores therein, a valve mounted in one of the bores and having a port for the normal exhaust of an engine and a second port for exhaust through an alarm, an alarm operable upon the escape of exhaust gases through the valve When the latter is rotated, and means for locking the valve against rotation.

41-. A device of the class described, comprising a body portion having bores therein, a valve mounted in one of the bores, an alarm operable upon the escape of gases through the valve When rotated from inoperative to operative position, said alarm including a Whistle mounted on the valve, a housinginclosing the Whistle, a gear Wheel for rotating the valve, and key controlled rack and pinion mechanism for controlling the gear Wheel, said housing including a base through which the valve passes perv pendicularly, said base being recessed for receiving the rack and pinion mechanism.

5. A device of the class described comprising a body portion having bores therein, a valve mounted in one of the bores, an alarm operable upon the escape of exhaust gases through the valve when the latter is rotated to deflect the gases from their normal path, and means for retaining the valve against rotation, said means including a gear wheel carried bythe valve, a key operated gear wheel, and a. slidable locking bar interposed between the gear Wheels, and transmitting movement from the key operated wheel to the wheel carried by the valve.

In testimony whereof I afiix my signature.

SAM CROCE. 

